guard against UnboundLocalError on "message_submit" POST to `/review/<id>`
style

not to argue against changing it... but it's just style.. right?
Merge pull request #337 from ewdurbin/UnboundLocalError

guard against UnboundLocalError in `/review/<id>`
Ensure message_form has been defined
Merge pull request #338 from PyCon/define-message-form

Ensure message_form has been defined
Moved the voting results to below the submission box.
add env directory, which README calls for
Change wording on the team_detail status page.
Removing the comments around Your Assignment in talk sidebar
Fixed issue#339 - was a simple boolean logic error. Tested by hand.
Added friendly message about when the review period closes.
Revert "Removing the comments around Your Assignment in talk sidebar"

This reverts commit 3bdd7fd44cad5e334c82cd70b8b9d78eb6435c97.
Revert "Moved the voting results to below the submission box."

This reverts commit 4ccc3ad9b5c42517eed1a397580e4cae5e76a870.
Added indentation per request.
Merge pull request #347 from trustrachel/issue339

Don't display the speaker comment form if review period is over
Fix for issue #350 - the positioning of the image placed it over the link, so the link was no longer clickable. I sent it behind the link with z-index which seems to have done the trick. Tested in OSX Chrome & Firefox.
Merge pull request #343 from kevinlondon/wording_change

Change wording on the team_detail status page.
display the review and voting start dates in review lists
make voting and review dates be contingent on slug == "talks"
Merge pull request #356 from jwm/display_review_and_vote_starts

display the review and voting start dates in review lists